Measuring apparatus.



E. NUEBLING.

MEASURING APPARATUS.

APPLICATION FILED NOV.19,1910.

1,035,225., PatentedAug.13,1912.

2 SHEETS-SHEET 1. W131]. I

WITNESSES: [MENTOR 5y EDWARD M/mL/A/c WWW ATTORNEYS E. NUEBLING.

MEASURING APPARATUS.

APPLICATION FILED NOV".19,1910. v

1,035,225. Patented Aug. 13, 1912.

2 SHEETS SHEET 2.

WIT];

WITNESSES. H INVENTOR %;P 501mm mama/v6 ATTORNEKS.

To (ill whom it may concern:

EDWARD NUEBLING, OF NEW YORK, N. Y.- I

MEASURING Arraimros.

wam a; re ndant. Pat t d A g .13,1912.

Application filed November 19, 1910, serial-m5. 593,231.

Be it k nown that I, Enwann NUEBPING, a citizen of the United ,States,and resident of the borough of Manhattan, city, county,

and State of ew' York, have invented cer-- tain' newand usefulImprovements in Measuring Apparatus, of which the following is a Ispecification.

My invention relates to improvements in the construction and operationof meters and has for its object. to provide an instrument of simple andpractical construction thatwill automatically measure the quantityof thefluid which passes through it.

It is particularly adapted to metering of watenbut may of course bereadily adapted to the measuring of other fluids, either liquid orgaseous. l The invention is illustrated in the accompanying drawings, inwh'ich Figure 1 is a side view, partly in section;

Fig: 2 is a similar view'of a modified form of my device; Fig. 3 is asection online 3- 3 'of Fig. 2.-

In F ig. 1, A represents a rotary shaft carrying a helical thread ll,wvhich is shownin this view as having one and onehalf convolutions. Thepitch of this screw is sufficiently acute to cause the shaft to revolveupon the application of pressure to the surface of'the screw.

C represents the case which carries the shaft A and helical screw B.This case C has an inner cylindrical surface corresponding with thecylindrical figure defined by a rotation of the helical screw; in otherwords, the screw fits snugly within the case C in any position which itmay assume. case C is partly filled with mercury or other suitableliquid to the depth of preferably the axial line of'the shaft A.

D represents the inlet opening for the fluid to be measured and E theoutlet.

' The fluid to henneasured entering at D comes in contact with the faceof the screw B, but because of the mercury seal at the bottom and thesnug fitting sides of the case C is unable to pass beyond this pointunless the shaft A is rotated. This rotation is of course accomplishedby the pressure of the fluid to be n'ieasured. It is further apparent.that as the fluid to be measured passes through the upper portion of thecase C to the outlet- IE it will continuously rotate the screw B andcarry o 'er only a certain fixed The quantity .of fluid per rotation; inother words, a definite fixed quantity of fluid will pass through thedevice for each revolution ;ofthis screw and that quantity, will beantomatically indicatedby an ordinary dialdevice which registers; thenumber of the.

revolutions of the shaft A.

In a device of the character represented in Fig. 1 itis essential thatthe sealing medium, which I have thus far termed mercury, shall be of'aconsistency which will not unduly yield to the pressureof the fluid tobe measured. It is also preferably of a constitution which will notreact chemically with the fluid "to be measured. The helical screwshould be mounted-to rotate freely so asto avoid the'possibilit-y of themercury being carried into the,outl.et E as a result of undue pressureof the fluid to be] measured;

The device illustrated in Fig. 2 embodies the same principle as thatdescribed in con nection with Fig.1, but is adapted moreparticularly forfluid-entering the meter at high pressure. In Fig. 2, instead of themercury seal, I employ acylindrical seal. This cylindrical seal F isprovided with a move G which exactly matches the thread of the screw B.The coil of the spiral fits into this groove closely so as toeft'ect atight seal along the meeting-edges atall times between groove and coil.The fluid entering thede vice at D rotates the shaft A- as described inconnection with Fig. 1 because the fluid'has no other outletfrom thedevice except that furnished by the rotation of, said shaft, ,lnrotating theshaft A and the'c oil It. as the fluid passes tothe outlet-E, the cylinder F is similarly rotated in an opposite direction. In Fig.2 this counter rotation of the cylinder F is accomplished by means ofthe action of the pressureof the fluid to he meas ured against the sidesof the helix. The two intermeshing similar gear wheels II and I areattached to one end of the shaft A and the shaft J of the cylinder F forthe purpose of reducingwear by friction between the helical thread andthe groove of the cylinder. Bearing plates K and L serve to maintain thealinernent between the cylinder F and shaft A. The train of gearsdesignated as M are reduction gears to allow the indication inconvenient units of measure. This train of gears M is mounted on a plateN which is readily removable so as to give opening in the shape of twosegments of cylinders S and T; S corresponding with the outer surface ofthe cylinder F, and T with the outer surface of the-cylinder. defined bythe rotation of the helix B.

The essential feature of my invention resides in the fact that there isinterposed hetween the inlet and outlet openings of the device achamber, the open portion of which is roundedto correspond to therotation of a helical screw so that there shall be comparatively a snugfit between the outer edge -of the screw and the interior of thechamber; said chamber must also contain a rotatifn shaft for the helicalscrew freely rota,-

ta le by the action ofthe pressure of" the fluid to be measured againstthe sides of the helix. The open space in said chamber between the twoends ofthe helical screw must be ascertainable as the 'unit ofcalculation. This quantity having been once ascertained it can readilybe translated into gallons,

cubic feet, or other convenient unit of meats ure by theroperarrangement of gears or the like such asshown in Fig. 2..

.Having now described my invention what I claim is: 1. A measuringapparatus comprising a stationary cylindrical chamber having an inletand an outlet opening for the fluid to be measured, a shaft located insaid chamber and freely,rotatabletherein, a helical screw on said shaftextending substantially to the' inner surface of said chamber, and meansfor progressively obstructing a portion of .said chamber againstpassage'of the fluid to be measured, said obstructing means beingarranged to accommodate itself to the rotation of thescrew, and meansoperated bythe shaft for registering the volume of fluid that has passedthrough. said chamber.

2. A measuring apparatus comprising a stationary cylindrical chamberhaving an inlet and an outlet opening for the fluid to be measured, ashaft located in said chamher and freely rotatable therein, a helicalscrew on said shaft extending substantially to the inner surface of saidchamber, means for progressively obstructing a portion of said-chamberagainst passage of. the fluid to be m asured, and means operated bytheshaft for registering the volume of fluid.

that has passed through said chamber.

In testimony whereofl have signed this specification in the presence oftwo subscribing witnesses.

- EDVVARD NUEBLING.

Witnesses:

EUGENE Earn, JOHN A. KnnLENBnoK.

